{"title":"low-vision-tests","description":null,"products":[{"product_id":"large-led-illuminator-cabinet","title":"Large LED ETDRS® Illuminator Cabinet","description":"\u003ch5\u003eLuminance Level Models\/Options\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-100: On\/Off at 160 cd\/m2\u003c\/strong\u003e\u003cbr\u003eMost common for use in clinical settings for normal and low vision patients and ETDRS® clinical trials.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-200: 3 Presets at 3, 85 and 160 cd\/m2\u003c\/strong\u003e\u003cbr\u003eAllows for testing at mesopic luminance and the most common ETDRS®\/clinical setting. The 85 cd\/m2 preset is provided for some protocol requirements and the use of the Trans-Illuminated Pelli-Robson Contrast Sensitivity\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-300 7 Presets at 3, 10, 40, 85, 160, 320 and 800 cd\/m2\u003c\/strong\u003e\u003cbr\u003eThis configuration allows for testing vision under several different luminance levels with optional charts in high contrast, low contrast and threshold contrast and different test distances.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2425LED-Custom\u003c\/strong\u003e\u003cbr\u003eWe manufacture and calibrate every cabinet in-house are capable of providing 1 to 9 specific presets ranging from 3 to 800 cd\/m2 to support your research or clinical trial requirements. Phone or email to discuss your request and get pricing.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"\/products\/5-leg-caster-base\/\"\u003e\u003cstrong\u003e5-Leg Caster Base \u003cem\u003e(not included) \u003c\/em\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003ca href=\"\/products\/5-leg-caster-base\"\u003e\u003cstrong\u003e\u003cem\u003eADD NOW - SKU: 2426LED\u003c\/em\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eETDRS® Charts \u003cem\u003e(not included) with cabinet. Charts can be purchased in sets or individually: \u003c\/em\u003e\u003c\/strong\u003eOriginal Series, Revised Series, or Other ETDRS® Charts\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5 style=\"text-align: left;\"\u003eWhat Sets Us Apart From the Rest?\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eEach and every individual cabinet is quality tested and \u003cstrong\u003ecalibrated individually\u003c\/strong\u003e prior to receiving our quality assurance of Mission critical attention to detail!\u003c\/li\u003e\n\u003cli\u003ePrecision Vision Illuminator Cabinets are crafted with performance welding and are sturdy enough to last the lifetime of your trial or research!\u003c\/li\u003e\n\u003cli\u003eNo extended warranty is necessary, our cabinet's durability is guaranteed. They arrive on-site ready to test!\u003c\/li\u003e\n\u003cli\u003eClinically Tested, Clinically Proven, and Universally Trusted!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"\/products\/2425led-remote\"\u003e*Remote Not Included and must be purchased separately\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/09\/dd74d80b-2425led-ce-manual-rev3.4_sz-proof1.pdf\"\u003eDownload Best Practices for Installing Power Cord.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCheck out the\u003cspan style=\"color: #ff0000;\"\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2025\/03\/0d88c023-precision-vision-cabinet-history-final-final.pdf\" style=\"color: #ff0000;\"\u003e \"Precision Vision ETDRS® Illuminator Cabinet History and Future Outlook: A Guide for Clinical Trials and Vision Research\"\u003c\/a\u003e\u003c\/span\u003e for more information about the evolution of our illuminator cabinets.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"100","offer_id":45921480179873,"sku":"2425LED-100","price":1895.0,"currency_code":"USD","in_stock":true},{"title":"200","offer_id":45921480212641,"sku":"2425LED-200","price":2175.0,"currency_code":"USD","in_stock":true},{"title":"300","offer_id":45921480245409,"sku":"2425LED-300","price":2345.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/NEW-LED.jpg?v=1776157131"},{"product_id":"landolt-c-translucent-chart","title":"Landolt \"C\" Translucent Chart","description":"\u003cp\u003eCAT. NO. 2425 Illuminator Cabinet is necessary with these low contrast charts.\u003c\/p\u003e\n\u003cp\u003eThe Landolt C vision chart is considered the gold standard of alternative vision tests. The use of a single optotype helps to make the test universal. Even patients that are not familiar with the Roman Alphabet can identify which direction they see the broken or missing piece of the letter C. It is also helpful in testing patients that are illiterate or mute. The Landolt C chart is great for detecting signs of Astigmatism.\u003c\/p\u003e\n\u003cp\u003eDownload Recording Forms for : \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/06\/a6190631-2212a-recording-form.pdf\"\u003e2212A-10\u003c\/a\u003e - \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2022\/06\/b3fc06df-2212b-10-recording-form.pdf\"\u003e2212B-10\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan't find the chart you need? \u003ca href=\"\/pages\/contact\"\u003eContact Us\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Original Version","offer_id":45921482801313,"sku":"2212-10","price":98.25,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version B","offer_id":45921482834081,"sku":"2212B-10","price":98.25,"currency_code":"USD","in_stock":true},{"title":"Scrambled Version A","offer_id":45921482866849,"sku":"2212A-10","price":98.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/1a9baee2108527eeffc063ebca11f242_XL.jpg?v=1776157149"},{"product_id":"pv-numbers-low-vision-chart","title":"PV Numbers Low Vision Chart","description":"\u003cp\u003eCan be used for testing in multiple languages.\u003c\/p\u003e\n\u003cp\u003eFeatures smaller group for repetitive testing.\u003c\/p\u003e\n\u003cp\u003ePV Numbers are calibrated to Sloan optotype standards. Each PV Number is chosen because of specific size, design, difficulty, and its blur at threshold. Also, number charts give the option of testing multiple types of patients. Even patients not familiar with the Roman alphabet can identify numerals, making this a universal test.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921483554977,"sku":"2721","price":76.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/161bb2cd9d87d4fb2583e55eca6a3af4_XL-scaled-1.jpg?v=1776157144"},{"product_id":"low-vision-letter-chart-in-multiple-languages","title":"Low Vision Letter Chart - In Multiple Languages","description":"\u003cp\u003eChart contains SLOAN letters in LogMAR increments. Optotypes range in size from 50M to 5M on the main chart and from 6M to 1M on the inside chart.\u003c\/p\u003e\n\u003cp\u003eWhen used at 1 meter, the main chart covers the entire Low Vision range from 1\/1(20\/1000, 0.02) to 1\/5(20\/100, 0.2 and extends to 1\/1 (20\/20, 1.0) on the inside chart.\u003c\/p\u003e\n\u003cp\u003eA cord with an occluder is attached to accurately maintain the 1-meter testing distance.\u003c\/p\u003e\n\u003cp\u003eThe back of the card contains proportionally spaced reading segments from 4M to 0.6M in Times Roman font. From 3M on, two sets are provided to avoid memorization.\u003c\/p\u003e\n\u003cp\u003eEach line contains the same number of letters and spaces.\u003c\/p\u003e\n\u003cp\u003eDiopter ruler and instructions are included.\u003c\/p\u003e\n\u003cp\u003eMost acuity vision charts have the patient identify single letters in a line. Continuous text chart are designed to simulate everyday reading tasks for patients by using actual sentences. These sentences are calibrated to have a specific number of letters and spaces to create an equal test.\u003c\/p\u003e\n\u003cp\u003eAlso Available in a Variety of Languages:\u003cbr\u003eEnglish Part # 4001\u003cbr\u003eSpanish Part # 4002\u003cbr\u003ePortuguese Part # 4003\u003cbr\u003eGerman Part # 4004\u003cbr\u003eDutch Part # 4005\u003cbr\u003eFinnish Part # 4006\u003cbr\u003eSwedish Part # 4007\u003cbr\u003eItalian Part # 4008\u003cbr\u003eFrench Part # 4009\u003cbr\u003eNorwegian Part #4000-19\u003c\/p\u003e\n\u003cp\u003eFor more info please visit: \u003ca href=\"https:\/\/www.ski.org\/Colenbrander\" target=\"_blank\" rel=\"noopener\"\u003ehttps:\/\/www.ski.org\/Colenbrander\u003c\/a\u003e\u003c\/p\u003e","brand":"Colenbrander","offers":[{"title":"English","offer_id":45921483718817,"sku":"4001","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Spanish","offer_id":45921483751585,"sku":"4002","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Portuguese","offer_id":45921483784353,"sku":"4003","price":76.0,"currency_code":"USD","in_stock":true},{"title":"German","offer_id":45921483817121,"sku":"4004","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Dutch","offer_id":45921483849889,"sku":"4005","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Finnish","offer_id":45921483882657,"sku":"4006","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Swedish","offer_id":45921483915425,"sku":"4007","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Italian","offer_id":45921483948193,"sku":"4008","price":76.0,"currency_code":"USD","in_stock":true},{"title":"French","offer_id":45921483980961,"sku":"4009","price":76.0,"currency_code":"USD","in_stock":true},{"title":"Norwegian","offer_id":45921484013729,"sku":"4000-19","price":76.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/a01253be6ea05e1e8a72b1a2a0636467_XL.jpg?v=1776157165"},{"product_id":"bailey-lovie-chart-set","title":"Bailey Lovie Chart Set","description":"\u003cp\u003eThe charts standardized the test task so that size is the only significant variable from one row to the next. There are 5 letters per row, between-letter and between-row spacings equal to letter size, size progresses by a constant ratio (0.1 log unit = 1,26x), and letter difficulties are balanced for each row. Contrast Sensitivity. The difference in the number of letters read on the high and low contrast charts provides a measure of the slope of the Contrast Sensitivity Function. The charts come as a set of two panels (21x24inches, 53x60cm) each with a high contrast chart one side and a low contrast chart (18% Weber or 10% Michelson) on the other. The optotype set is the family of ten British Standard (1968) 5x4 non-serifed letters. There are 14 rows with a range of sizes from 38 to 1.9 M-units. Sizes are given in Snellen units (in both feet and metric units), as well as visual acuity values in LogMAR and VAR (Visual Acuity Rating) for a 6 meter viewing distance. Any other viewing distance may be used as well. A scale printed on each chart provides the score adjustment for different test distances. With the LogMAR and VAR scales, equal credit is given for each additional letter read (each extra letter earns -0.02 with LogMAR , or 1 point with VAR)\u003c\/p\u003e\n\u003cp\u003eSee more from one of the developers, Dr. Ian Bailey in: \u003ca href=\"\/blogs\/videos\/behind-the-test-the-bailey-lovie-contrast-sensitivity-test\" target=\"_blank\" rel=\"noopener\"\u003eBehind the Test – The Bailey Lovie Contrast Sensitivity Test\u003c\/a\u003e\u003c\/p\u003e","brand":"Bailey-Lovie","offers":[{"title":"Default Title","offer_id":45921484046497,"sku":"5000 Bailey - Lovie","price":254.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/3946cc5a2ed843c2c9fca0b4efcd28ba_XL.jpg?v=1776157145"},{"product_id":"pelli-robson-contrast-sensitivity-chart","title":"Pelli-Robson Contrast Sensitivity Chart","description":"\u003cp\u003eFeatures Traditional Sloan Optotypes\u003c\/p\u003e\n\u003cp\u003eFor use at 100cm (1m)\u003c\/p\u003e\n\u003cp\u003eIncludes two charts which may be wall or easel mounted and score sheets.\u003c\/p\u003e\n\u003cp\u003eIllumination of 85 cd\/m² is key to good results\u003c\/p\u003e\n\u003cp\u003eDesigned by DG Pelli, JG Robson and A J Wilkins, because they see contrast sensitivity as a realistic assessment of how well the patient sees large faint objects.\u003c\/p\u003e\n\u003cp\u003eThe chart follows the luminance, font, and letter spacing recommendations of the Committee on Vision of the National Academy of Sciences and National Research Council (Adv. Ophthal 41, 103-148, 1980).\u003c\/p\u003e\n\u003cp\u003eThe letter sequences are organized into groups of three (triplets) with two triplets per line. Within each triplet, all letters have the same contrast. The contrast decreases from one triplet to the next, even within one line.\u003c\/p\u003e\n\u003cp\u003eThe testing of contrast sensitivity on a regular basis is key to detecting early signs of diseases such as Parkinson's, Glaucoma, and Cataracts. By testing with several different contrast levels configured together, the patient's contrast sensitivity level is better assessed and records will be more precise.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/easel-for-pelli-robson-charts\/\"\u003eEasel Available\u003c\/a\u003e For Display alternative to wall mounting.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/10\/b2f0f8ad-pelli-robson-instructions.pdf\"\u003eDownload Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eDownload Recording Forms for:  \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/10\/e7eccad9-5014-chart-1-and-2-recording-form.pdf\"\u003e5014\u003c\/a\u003e  -  \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/10\/d9396917-5014-3-recording-form-rev2.pdf\"\u003e5014-3\u003c\/a\u003e  - \u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/10\/c90c0ad9-5014-4-recording-form-rev2-approved.pdf\"\u003e5014-4\u003c\/a\u003e\u003c\/p\u003e","brand":"Pelli-Robson","offers":[{"title":"Set 1","offer_id":45921486766241,"sku":"5014","price":598.75,"currency_code":"USD","in_stock":true},{"title":"Chart 1","offer_id":45921486799009,"sku":"5014-1","price":327.25,"currency_code":"USD","in_stock":true},{"title":"Chart 2","offer_id":45921486831777,"sku":"5014-2","price":327.25,"currency_code":"USD","in_stock":true},{"title":"Chart 3","offer_id":45921486864545,"sku":"5014-3","price":327.25,"currency_code":"USD","in_stock":true},{"title":"Chart 4","offer_id":45921486897313,"sku":"5014-4","price":327.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/5014_1-scaled-1.jpg?v=1776157164"},{"product_id":"easel-for-pelli-robson-charts","title":"Easel for Pelli Robson Charts","description":"","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921487061153,"sku":"Easel5014","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/5159b236-new-easel-scaled-1.jpg?v=1776157160"},{"product_id":"simulator-glasses-kit","title":"Lighthouse Simulator Glasses Kit","description":"\u003cp\u003eLighthouse Simulator Glasses Kit is made of Heavy Paperboard with Eight Common Vision Problems: Central Loss, CMV, Retinitis, Peripheral Loss, Hemianopia, Color, Overall Blur and Low Contrast.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNeed more of a specific type of glasses? We’ve got you covered!\u003c\/p\u003e\n\u003cp\u003e· Diabetic Retinopathy Glasses (SKU: LH 0772)\u003c\/p\u003e\n\u003cp\u003e· CMV Retinitis Glasses (SKU: LH 0773)\u003c\/p\u003e\n\u003cp\u003e· Central Loss Glasses (SKU: LH 0774)\u003c\/p\u003e\n\u003cp\u003e· Peripheral Glasses (SKU: LH 0775)\u003c\/p\u003e\n\u003cp\u003e· Overall Blur (SKU: LH 0776)\u003c\/p\u003e\n\u003cp\u003e· Hemianopia Glasses (SKU: LH 0777)\u003c\/p\u003e\n\u003cp\u003e· Low Contrast Glasses (SKU: LH 0778)\u003c\/p\u003e\n\u003cp\u003e· Color Glasses (SKU: LH 0779)\u003c\/p\u003e\n\u003cp\u003eContact us at \u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003ca style=\"color: #ff0000;\" href=\"mailto:orders@precision-vision.com\" target=\"_blank\" rel=\"noopener\"\u003eorders@precision-vision.com\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e for bulk order pricing and lead times.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921487093921,"sku":"5101","price":41.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/4e1bf397-simulator-glasses-scaled-1.jpg?v=1776157161"},{"product_id":"brvt-the-berkeley-rudimentary-vision-test","title":"BRVT The Berkeley Rudimentary Vision Test","description":"\u003cp bis_size='{\"x\":12,\"y\":9,\"w\":576,\"h\":58,\"abs_x\":428,\"abs_y\":271}'\u003eFor Visual acuity levels beyond the limit of the letter charts, the common practice is for clinicians to categorize vision according to whether the patient can count fingers (CF) or detect hand motion (HM), but there is no recognized or standard procedures for doing this.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":84,\"w\":576,\"h\":117,\"abs_x\":428,\"abs_y\":346}'\u003eThe Berkeley Rudimentary Vision Test (BRVT) was developed to enable efficient and easy measurement of visual acuity beyond the limits of the letter chart. It becomes necessary to make the test task simpler than the letter chart task and, in order to achieve very large angular sizes, very close viewing distances may be required. In the interests of simplicity and flexibility of use, the BRVT has 3 card-pairs. Each card pair consists of two 25 cm square hinged cards so each card-pair has 4 target surfaces.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":218,\"w\":576,\"h\":19,\"abs_x\":428,\"abs_y\":480}'\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2024\/12\/2fedd287-4500-instructions-rev3.1.pdf\" rel=\"noopener noreferrer\" bis_size='{\"x\":12,\"y\":218,\"w\":161,\"h\":18,\"abs_x\":428,\"abs_y\":480}' target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\" bis_size='{\"x\":12,\"y\":218,\"w\":161,\"h\":18,\"abs_x\":428,\"abs_y\":480}'\u003eClick Here For Instructions\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":253,\"w\":576,\"h\":19,\"abs_x\":428,\"abs_y\":515}'\u003e\u003ca href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2015\/05\/4500_BRVT-Testing-flow-chart.pdf\" rel=\"noopener noreferrer\" bis_size='{\"x\":12,\"y\":253,\"w\":246,\"h\":18,\"abs_x\":428,\"abs_y\":515}' target=\"_blank\"\u003e\u003cspan style=\"color: #ff0000;\" bis_size='{\"x\":12,\"y\":253,\"w\":246,\"h\":18,\"abs_x\":428,\"abs_y\":515}'\u003eClick Here for The Testing Flow Diagram\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":289,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":551}'\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":289,\"w\":576,\"h\":19,\"abs_x\":428,\"abs_y\":551}'\u003e\u003ca href=\"\/blogs\/newsletters\/eyeonvision-august-2021-blind-cricket\"\u003eClick Here for BRVT Development History \u0026amp; Applications\u003c\/a\u003e\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":324,\"w\":576,\"h\":0,\"abs_x\":428,\"abs_y\":586}'\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488076961,"sku":"4500","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/4500-Web.jpg?v=1776157164"},{"product_id":"patti-pics-colenbrander-low-vision-chart","title":"Patti Pics Colenbrander Low Vision Chart","description":"\u003cp\u003eFeatures a second optotype section for easy repetitive testing\u003c\/p\u003e\n\u003cp\u003eGreat for testing pediatrics\u003c\/p\u003e\n\u003cp\u003ePatti Pics optotypes use 5 symbols for easy pediatric testing. Each symbol is easy to identify and equally difficult. Also, Patti Pics are based from the standards of Sloan optotypes. This helps to ease the transition between pediatric testing and adult testing.\u003c\/p\u003e","brand":"Colenbrander","offers":[{"title":"Default Title","offer_id":45921488109729,"sku":"2580","price":76.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/ca518bf183c339c376b4bdc5c275df01_XL-scaled-1.jpg?v=1776157159"},{"product_id":"the-gonzalez-markowitz-potential-visual-acuity-test","title":"The Gonzalez-Markowitz Potential Visual Acuity Test","description":"\u003cp\u003eThis test is deigned for use at 50 cm in normal exam room lighting to quickly assess a low vision patient’s potential visual acuity. The test includes 10 test faces on 5 cards of white Tumbling E’s on a black background. The calibrated tests range from 20\/50 to 20\/400 acuity levels. Each card measures 40 cm x 40 cm (16” x 16”) Test instructions are included.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921488142497,"sku":"2325-MPVA","price":379.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/b9ad772005653afce4d4bd46c2efe842_XL-scaled-1.jpg?v=1776157159"},{"product_id":"pvvat-system-only","title":"PVVAT Software (Computer Not Included)","description":"\u003cp class=\"x-text-content-text-primary\"\u003e\u003cstrong\u003eDownload a risk-free DEMO today.\u003c\/strong\u003e (No Credit Card Required.)\u003c\/p\u003e\n\u003cdiv class=\"x-anchor-content\"\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/precision-vision.com\/pvvat-demo\/\"\u003eClick Here to Download a Demo (Windows or Mac)\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Description\u003cbr\u003e\n\u003c\/strong\u003ePVVAT is a robust software that will surely become your new favorite tool for acuity testing. PVVAT is jam-packed with 9 different optotypes that can be displayed in 7 different arrangements with over 20 additional charts and options. It is sure to fit your and your patient’s needs in one perfectly bundled software.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTest List:\u003cbr\u003e\n\u003c\/strong\u003e- Acuity Charts\u003cbr\u003e\n- Low Contrast Charts\u003cbr\u003e\n- Worth dot\u003cbr\u003e\n- Contrast sensitivity\u003cbr\u003e\n- Astigmatism\u003cbr\u003e\n- Circular astigmatism\u003cbr\u003e\n- Concentric circles\u003cbr\u003e\n- Red-Green balance\u003cbr\u003e\n- Maddox rod\u003cbr\u003e\n- Phoria test\u003cbr\u003e\n- Vernier test\u003cbr\u003e\n- Amsler grid\u003cbr\u003e\n- Disparity chart\u003cbr\u003e\n- Fixation points\u003cbr\u003e\n- Solid white dot\u003cbr\u003e\n- Changing color dot\u003cbr\u003e\n- Images\u003cbr\u003e\n- Videos\u003cbr\u003e\n- ATS-HOTV \/ E-ETDRS\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptotype choices:\u003cbr\u003e\n\u003c\/strong\u003e - Patti Pics® Pediatric Symbols\u003cbr\u003e\n- Sloan Letters\u003cbr\u003e\n- Bailey-Lovie\u003cbr\u003e\n- Snellen\u003cbr\u003e\n- HOTV\u003cbr\u003e\n- Tumbling E\u003cbr\u003e\n- PV Numbers®\u003cbr\u003e\n- Landolt C\u003cbr\u003e\n- Allen Pictures\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptotype Presentation:\u003c\/strong\u003e\u003cbr\u003e\n- Single character mode (crowding bars on\/off)\u003cbr\u003e\n- Single line mode (MassVAT® frame on\/off)\u003cbr\u003e\n- Multi-line ETDRS format\u003cbr\u003e\n- Multi line (all the same size)\u003cbr\u003e\n- Single-column mode (speed acuity testing)\u003cbr\u003e\n- MassVAT\u003cbr\u003e\n- Custom Crowding Bars\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWondering how this all works?\u003c\/strong\u003e\u003cbr\u003e\nYou download the software onto your hardware after reviewing that your existing equipment will work with the System Compatibility Chart*. Precision Vision will remotely activate your license once the sale has been processed, and we ship you all of your peripheral equipment, which includes the remote, receiver, and pediatric response keys (HOTV \u0026amp; Patti Pics) in addition to our most popular Sloan Near Vision Card (SKU: 2106). Precision Vision’s commitment to exceptional service does not end there! We are available as a resource for setup and additional support via email at \u003ca href=\"mailto:Sales@Precision-Vision.com\" target=\"blank\" rel=\"noopener noreferrer\"\u003e\u003cstrong\u003eSales@Precision-Vision.com\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSystem Compatibility\u003cbr\u003e\n\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003eWindows:\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– Windows 7\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– Windows 8\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– Windows 10\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003e– Windows 11\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003eMac:\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– OS X 10.10: Yosemite\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– OS X 10.11: El Capitan\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– macOS 10.12: Sierra\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– macOS 10.13: High Sierra\u003c\/span\u003e\u003cbr\u003e\n\u003cspan class=\"brwrap\"\u003e– macOS 10.14: Mojave\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-top: 0in;\"\u003e\u003cspan class=\"brwrap\"\u003e– macOS 10.15: Sequoia\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Windows","offer_id":45921488797857,"sku":"PVVAT-System-Windows","price":1750.0,"currency_code":"USD","in_stock":true},{"title":"MacOS","offer_id":45921488830625,"sku":"PVVAT-System-MacOS","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/PVVAT-group.png?v=1776157162"},{"product_id":"luxiq-light-exam-system","title":"LuxIQ™ Light Exam System","description":"\u003cdiv id=\"content-sidebar-wrap\"\u003e\n\u003cdiv id=\"content\" class=\"hfeed\"\u003e\n\u003cdiv class=\"post-9 page type-page status-publish hentry entry\"\u003e\n\u003cdiv class=\"entry-content\"\u003e\n\u003ch4\u003eNew lighting exam technology is a clinic changer\u003c\/h4\u003e\n\u003cp\u003eThe LuxIQ™ is the first calibrated exam tool to provide task lighting assessments and recommendations. Optimal light is important for functional vision. The LuxIQ uses light levels and color temperatures to quantify vision performance and light tolerance.\u003c\/p\u003e\n\u003ch4\u003ePeople who squint\u003c\/h4\u003e\n\u003cp\u003ePublished studies show that many need bright light of 2000-5000 lux to maximize acuity. A typical desk lamp provides only 800 lux; an exam room 600 lux. Most adults need more task light and\/or less glare for near acuity. Some children are photophobic and need less task light to succeed in school. The LuxIQ makes it practical to vary intensity from 0 to 5000 lux and color temperature from 2700 to 6500°K—without swapping hot bulbs or changing fixtures. Use it to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDetermine task lighting needs without trial and error\u003c\/li\u003e\n\u003cli\u003eRecommend optimum lamps and\/or light bulbs\u003c\/li\u003e\n\u003cli\u003eEducate patients in lighting concepts\u003c\/li\u003e\n\u003cli\u003eDetermine impact of color lighting\u003c\/li\u003e\n\u003cli\u003eChart patient lighting changes over time to observe disease progression\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePeople with dry eye\u003c\/h4\u003e\n\u003cp\u003e“I had no idea how consistent photophobia is in patients with dry eye disease.”\u003cbr\u003eHarvey Fishman, MD, PhD in \u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/Ophthalmology-Times.pdf?v=1778771652\" target=\"_blank\"\u003eOphthalmology Times\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eMany patients with dry eye experience light intolerance. Doctors can use the LuxIQ to baseline light sensitivity and track the impact of dry eye treatment. \u003cspan class=\"\"\u003eDry eye patients have been shown to consistently prefer substantially lower light levels \u003c\/span\u003e\u003cspan class=\"\"\u003e(1000 lux and lower) vs. normals (3000 lux and higher) before treatment. \u003c\/span\u003e\u003cspan class=\"\"\u003eAs an example, one\u003c\/span\u003e\u003cspan class=\"\"\u003e patient who initially preferred 1000 lux later preferred 4000 lux post-treatment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e5‐Minute Lighting Exam\u003c\/h4\u003e\n\u003ch4\u003e\u003cvideo id=\"video-9-1_html5\" class=\"wp-video-shortcode\" src=\"https:\/\/jasperridge.net\/wp-content\/uploads\/2015\/06\/LuxIQ-Demo-HD.mp4?_=1\" preload=\"metadata\" width=\"640\" height=\"360\"\u003e\u003c\/video\u003e\u003c\/h4\u003e\n\u003cdiv class=\"wp-video\"\u003e\n\u003cdiv id=\"mep_0\" class=\"mejs-container mejs-container-keyboard-inactive wp-video-shortcode mejs-video\" role=\"application\" aria-label=\"Video Player\" tabindex=\"0\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eTo assess acuity performance at various levels of illuminance and color temperature, switch on the LuxIQ and place it over reading material, such as eye charts or newspapers. In White Mode, examine the patient with intense, cool to warm light.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eSelect intensity using \u003cstrong\u003eLux\u003c\/strong\u003e slider, and keep constant.\u003c\/li\u003e\n\u003cli\u003eAdjust color temperature at selected intensity using \u003cb\u003eTemperature\u003c\/b\u003e slider.\u003c\/li\u003e\n\u003cli\u003eRecord the preferred intensity (lux) and color temperature (°K).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eLightChooser™ web app for LuxIQ™\u003c\/h4\u003e\n\u003cp\u003eJasper Ridge encourages the use of LightChooser (www.lightchooser.com) in tandem with the LuxIQ. Enter the preferred Lux and Temperature values to recommend lamps and bulbs that best match the patient’s preference. LightChooser’s database includes Stella, Bright Reach, Verilux, Ott, and other lamps and bulbs available in the US, Canada, and Europe.\u003c\/p\u003e\n\u003cp\u003eA convenient alternative to the web app is the Light Bulb Calculator. It uses the Lux value and working distance to quickly determine the optimal lumen bulb for each patient.\u003c\/p\u003e\n\u003ch4\u003ePatient confidentiality\u003c\/h4\u003e\n\u003cp\u003eThe LuxIQ and the LightChooser web app do not collect or save patient information, nor is the information visible to Jasper Ridge. All patient information is confidential.\u003c\/p\u003e\n\u003ch4\u003e\n\u003cem\u003ePrint data sheet:\u003c\/em\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/LuxIQ.pdf?v=1778771833\" rel=\"nofollow\"\u003eLuxIQ™\u003c\/a\u003e\n\u003c\/h4\u003e\n\u003ctable cellpadding=\"10\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntensity range:\u003c\/td\u003e\n\u003ctd\u003e0-5000 Lux\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor temperature:\u003c\/td\u003e\n\u003ctd\u003e2700-6500°K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor range:\u003c\/td\u003e\n\u003ctd\u003eGreen to red\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical:\u003c\/td\u003e\n\u003ctd\u003e8.5” L x 8” W x 2” H; 1.75 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower:\u003c\/td\u003e\n\u003ctd\u003eRechargeable battery, 5 volt charger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003eFinally a scientific basis to measure and recommend task lighting\u003c\/h3\u003e\n\u003cp\u003eThe LuxIQ combines illuminance, color, and lighting distribution for making evidence-based task light recommendations and monitoring the impact of dry eye treatments. US Patent 9,820,643\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"None","offer_id":45921488994465,"sku":"LuxIQ","price":1550.0,"currency_code":"USD","in_stock":true},{"title":"Soft Tote","offer_id":45921489027233,"sku":"LuxIQ Soft Tote","price":1660.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/d0781aab6107ab09663a5b35f9583041_XL-scaled-1.jpg?v=1776157164"},{"product_id":"low-vision-visual-acuity-book","title":"Low Vision Visual Acuity Book","description":"\u003cul\u003e\n\u003cli\u003eOriginal Feinbloom arrangement modified by using PVNumbers® and a logarithmic progression from 20\/1000 to 20\/20\u003c\/li\u003e\n\u003cli\u003eUniform rows of 5 numbers each from 20\/100 to 20\/20\u003c\/li\u003e\n\u003cli\u003eNotations are given in feet and M units with equivalent Snellen fractions for a 10 foot test distance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eWilliam Feinbloom , O.D., PH.D.\u003csup\u003e®\u003c\/sup\u003e is a registered trademark of Designs for Vision, Inc. and is used with their permission.\u003c\/em\u003e\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921493483681,"sku":"2703","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/low_vision_visual_acuity_book_cover.jpg?v=1776157169"},{"product_id":"mnread-pocket-card","title":"MNRead Pocket Card - Spanish","description":"\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOne of the key innovations of the original MNRead card are the well-designed continuous text paragraphs, which provide fantastic clinical simulations of the typical reading task. This approach helps ensure that clinician-selected magnification devices are appropriate for patient’s everyday reading goals. Our new MNRead Pocket card builds upon the innovations of the original card by including a \u003c\/span\u003e\u003cspan class=\"s2\"\u003esele\u003c\/span\u003e\u003cspan class=\"s3\"\u003ect\u003c\/span\u003e\u003cspan class=\"s4\"\u003ei\u003c\/span\u003e\u003cspan class=\"s3\"\u003eo\u003c\/span\u003e\u003cspan class=\"s2\"\u003en \u003c\/span\u003e\u003cspan class=\"s3\"\u003eof \u003c\/span\u003e\u003cspan class=\"s2\"\u003eh\u003c\/span\u003e\u003cspan class=\"s5\"\u003ei\u003c\/span\u003e\u003cspan class=\"s2\"\u003eg\u003c\/span\u003e\u003cspan class=\"s3\"\u003eh\u003c\/span\u003e\u003cspan class=\"s4\"\u003e-\u003c\/span\u003e\u003cspan class=\"s3\"\u003ey\u003c\/span\u003e\u003cspan class=\"s2\"\u003eield \u003c\/span\u003e\u003cspan class=\"s3\"\u003ee\u003c\/span\u003e\u003cspan class=\"s2\"\u003el\u003c\/span\u003e\u003cspan class=\"s3\"\u003eeme\u003c\/span\u003e\u003cspan class=\"s2\"\u003ents \u003c\/span\u003e\u003cspan class=\"s3\"\u003eon re\u003c\/span\u003e\u003cspan class=\"s2\"\u003ev\u003c\/span\u003e\u003cspan class=\"s4\"\u003eerse surface \u003c\/span\u003e\u003cspan class=\"s2\"\u003eof ca\u003c\/span\u003e\u003cspan class=\"s3\"\u003er\u003c\/span\u003e\u003cspan class=\"s2\"\u003ed that are transferrable to real\u003c\/span\u003e\u003cspan class=\"s3\"\u003e-\u003c\/span\u003e\u003cspan class=\"s2\"\u003eworld \u003c\/span\u003e\u003cspan class=\"s3\"\u003eus\u003c\/span\u003e\u003cspan class=\"s2\"\u003ee of \u003c\/span\u003e\u003cspan class=\"s5\"\u003elow visi\u003c\/span\u003e\u003cspan class=\"s2\"\u003eon \u003c\/span\u003e\u003cspan class=\"s3\"\u003ed\u003c\/span\u003e\u003cspan class=\"s2\"\u003eev\u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s2\"\u003ec\u003c\/span\u003e\u003cspan class=\"s3\"\u003ee\u003c\/span\u003e\u003cspan class=\"s2\"\u003es \u003c\/span\u003e\u003cspan class=\"s3\"\u003ef\u003c\/span\u003e\u003cspan class=\"s2\"\u003eo\u003c\/span\u003e\u003cspan class=\"s3\"\u003er \u003c\/span\u003e\u003cspan class=\"s2\"\u003ecommon visual goals\u003c\/span\u003e\u003cspan class=\"s3\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eThe MNRead Pocket Card is the perfect demonstration tool to confirm selected low vision device magnification levels for individuals of all ages with low vision. The matte surface of the card has paragraphs from the original MNRead Charts in a clinically-relevant size range. Specifically, the card contains three octaves of print sizes from 3.2M extra-large print to 0.4M fine-print, which is a standard near visual acuity range of 20\/160 down to 20\/20 (0.9 to 0.0 LogMAR). \u003c\/span\u003e\u003cspan class=\"s2\"\u003eThis size range was optimized f\u003c\/span\u003e\u003cspan class=\"s3\"\u003eo\u003c\/span\u003e\u003cspan class=\"s2\"\u003er \u003c\/span\u003e\u003cspan class=\"s3\"\u003eas\u003c\/span\u003e\u003cspan class=\"s2\"\u003ese\u003c\/span\u003e\u003cspan class=\"s3\"\u003essm\u003c\/span\u003e\u003cspan class=\"s2\"\u003eent of read\u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s2\"\u003eng performance in era of anti-VEGF treatment, where many low vision patients are correctable to \u003c\/span\u003e\u003cspan class=\"s5\"\u003e2\u003c\/span\u003e\u003cspan class=\"s2\"\u003e0\u003c\/span\u003e\u003cspan class=\"s4\"\u003e\/\u003c\/span\u003e\u003cspan class=\"s2\"\u003e10\u003c\/span\u003e\u003cspan class=\"s3\"\u003e0 o\u003c\/span\u003e\u003cspan class=\"s4\"\u003er \u003c\/span\u003e\u003cspan class=\"s3\"\u003ebetter\u003c\/span\u003e\u003cspan class=\"s6\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eThe glossy surface of the card displays a potpourri of full-color objects one would encounter in daily life. Some examples of our carefully calibrated real-world facsimiles include: \u003c\/span\u003e\u003cspan class=\"s2\"\u003ecrisp newspaper columns\u003c\/span\u003e\u003cspan class=\"s7\"\u003e,\u003c\/span\u003e\u003cspan class=\"s2\"\u003e faded newspaper \u003c\/span\u003e\u003cspan class=\"s3\"\u003et\u003c\/span\u003e\u003cspan class=\"s2\"\u003ee\u003c\/span\u003e\u003cspan class=\"s3\"\u003ext (50% Weber contrast)\u003c\/span\u003e\u003cspan class=\"s7\"\u003e, \u003c\/span\u003e\u003cspan class=\"s5\"\u003ere\u003c\/span\u003e\u003cspan class=\"s2\"\u003ec\u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s2\"\u003ep\u003c\/span\u003e\u003cspan class=\"s3\"\u003ees with fractions\u003c\/span\u003e\u003cspan class=\"s7\"\u003e, \u003c\/span\u003e\u003cspan class=\"s2\"\u003enutrit\u003c\/span\u003e\u003cspan class=\"s3\"\u003eiona\u003c\/span\u003e\u003cspan class=\"s2\"\u003el \u003c\/span\u003e\u003cspan class=\"s3\"\u003einforma\u003c\/span\u003e\u003cspan class=\"s2\"\u003eti\u003c\/span\u003e\u003cspan class=\"s3\"\u003eon\u003c\/span\u003e\u003cspan class=\"s6\"\u003e, \u003c\/span\u003e\u003cspan class=\"s2\"\u003eprescr\u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s2\"\u003eptions\u003c\/span\u003e\u003cspan class=\"s7\"\u003e, \u003c\/span\u003e\u003cspan class=\"s2\"\u003eOTC med \u003c\/span\u003e\u003cspan class=\"s5\"\u003eins\u003c\/span\u003e\u003cspan class=\"s2\"\u003etru\u003c\/span\u003e\u003cspan class=\"s3\"\u003ecti\u003c\/span\u003e\u003cspan class=\"s2\"\u003eon lab\u003c\/span\u003e\u003cspan class=\"s3\"\u003ee\u003c\/span\u003e\u003cspan class=\"s2\"\u003el\u003c\/span\u003e\u003cspan class=\"s3\"\u003es\u003c\/span\u003e\u003cspan class=\"s6\"\u003e, \u003c\/span\u003e\u003cspan class=\"s2\"\u003egro\u003c\/span\u003e\u003cspan class=\"s3\"\u003ecery p\u003c\/span\u003e\u003cspan class=\"s2\"\u003er\u003c\/span\u003e\u003cspan class=\"s5\"\u003eice \u003c\/span\u003e\u003cspan class=\"s2\"\u003et\u003c\/span\u003e\u003cspan class=\"s3\"\u003eags\u003c\/span\u003e\u003cspan class=\"s8\"\u003e, \u003c\/span\u003e\u003cspan class=\"s3\"\u003et\u003c\/span\u003e\u003cspan class=\"s2\"\u003ee\u003c\/span\u003e\u003cspan class=\"s5\"\u003ext m\u003c\/span\u003e\u003cspan class=\"s2\"\u003ee\u003c\/span\u003e\u003cspan class=\"s3\"\u003es\u003c\/span\u003e\u003cspan class=\"s2\"\u003esage boxes\u003c\/span\u003e\u003cspan class=\"s4\"\u003e, complex \u003c\/span\u003e\u003cspan class=\"s2\"\u003emus\u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s2\"\u003ecal scores\u003c\/span\u003e\u003cspan class=\"s4\"\u003e,\u003c\/span\u003e\u003cspan class=\"s2\"\u003e rulers\u003c\/span\u003e\u003cspan class=\"s5\"\u003e, \u003c\/span\u003e\u003cspan class=\"s2\"\u003ecomputer \u003c\/span\u003e\u003cspan class=\"s3\"\u003eke\u003c\/span\u003e\u003cspan class=\"s2\"\u003ey\u003c\/span\u003e\u003cspan class=\"s3\"\u003es\u003c\/span\u003e\u003cspan class=\"s7\"\u003e, \u003c\/span\u003e\u003cspan class=\"s5\"\u003er\u003c\/span\u003e\u003cspan class=\"s2\"\u003eemo\u003c\/span\u003e\u003cspan class=\"s3\"\u003ete \u003c\/span\u003e\u003cspan class=\"s2\"\u003econ\u003c\/span\u003e\u003cspan class=\"s3\"\u003etro\u003c\/span\u003e\u003cspan class=\"s2\"\u003el button\u003c\/span\u003e\u003cspan class=\"s3\"\u003es\u003c\/span\u003e\u003cspan class=\"s7\"\u003e, \u003c\/span\u003e\u003cspan class=\"s3\"\u003efishing h\u003c\/span\u003e\u003cspan class=\"s2\"\u003eo\u003c\/span\u003e\u003cspan class=\"s3\"\u003eoks\/sew\u003c\/span\u003e\u003cspan class=\"s4\"\u003ei\u003c\/span\u003e\u003cspan class=\"s2\"\u003eng needles\u003c\/span\u003e\u003cspan class=\"s5\"\u003e, \u003c\/span\u003e\u003cspan class=\"s2\"\u003eand more.\u003c\/span\u003e\u003cspan class=\"s1\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003eClinicians purchasing this card can gain improved ac\u003c\/span\u003e\u003cspan class=\"s3\"\u003ec\u003c\/span\u003e\u003cspan class=\"s1\"\u003euracy \u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s1\"\u003en th\u003c\/span\u003e\u003cspan class=\"s3\"\u003ee \u003c\/span\u003e\u003cspan class=\"s1\"\u003efi\u003c\/span\u003e\u003cspan class=\"s3\"\u003en\u003c\/span\u003e\u003cspan class=\"s1\"\u003ealizati\u003c\/span\u003e\u003cspan class=\"s3\"\u003eo\u003c\/span\u003e\u003cspan class=\"s1\"\u003en \u003c\/span\u003e\u003cspan class=\"s3\"\u003eo\u003c\/span\u003e\u003cspan class=\"s1\"\u003ef ma\u003c\/span\u003e\u003cspan class=\"s3\"\u003eg\u003c\/span\u003e\u003cspan class=\"s1\"\u003en\u003c\/span\u003e\u003cspan class=\"s3\"\u003eificat\u003c\/span\u003e\u003cspan class=\"s1\"\u003eio\u003c\/span\u003e\u003cspan class=\"s3\"\u003en \u003c\/span\u003e\u003cspan class=\"s5\"\u003ede\u003c\/span\u003e\u003cspan class=\"s1\"\u003ev\u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s1\"\u003ece prescriptions, reducing the number of failed device returns. The ruler at the bottom of the card allows for quick determination of CCTV magnification settings. Patient have the opportunity to appl\u003c\/span\u003e\u003cspan class=\"s5\"\u003ey \u003c\/span\u003e\u003cspan class=\"s1\"\u003ethe\u003c\/span\u003e\u003cspan class=\"s5\"\u003eir \u003c\/span\u003e\u003cspan class=\"s1\"\u003etentat\u003c\/span\u003e\u003cspan class=\"s3\"\u003eive \u003c\/span\u003e\u003cspan class=\"s1\"\u003emag\u003c\/span\u003e\u003cspan class=\"s3\"\u003eni\u003c\/span\u003e\u003cspan class=\"s1\"\u003efic\u003c\/span\u003e\u003cspan class=\"s3\"\u003ea\u003c\/span\u003e\u003cspan class=\"s1\"\u003et\u003c\/span\u003e\u003cspan class=\"s3\"\u003ei\u003c\/span\u003e\u003cspan class=\"s1\"\u003eon pres\u003c\/span\u003e\u003cspan class=\"s3\"\u003ecr\u003c\/span\u003e\u003cspan class=\"s1\"\u003eipt\u003c\/span\u003e\u003cspan class=\"s6\"\u003ei\u003c\/span\u003e\u003cspan class=\"s3\"\u003eons \u003c\/span\u003e\u003cspan class=\"s1\"\u003eto the reverse side o\u003c\/span\u003e\u003cspan class=\"s3\"\u003ef \u003c\/span\u003e\u003cspan class=\"s1\"\u003ethe pocket card to consider r\u003c\/span\u003e\u003cspan class=\"s3\"\u003ee\u003c\/span\u003e\u003cspan class=\"s1\"\u003eal\u003c\/span\u003e\u003cspan class=\"s4\"\u003e-\u003c\/span\u003e\u003cspan class=\"s1\"\u003ew\u003c\/span\u003e\u003cspan class=\"s3\"\u003eo\u003c\/span\u003e\u003cspan class=\"s1\"\u003erld avocations and spur voicing of additional visual goals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eThe card is designed to be durable for long service life and to conveniently fit in the pocket of most lab coats. Only one version of the card is available since the intent is to have at least two copies in an exam room (one for demonstration and one for reference). Dr. Greg Hopkins was inspired to collaborate with two developers of the original MNRead Charts, Gordon Legge and Steve Mansfield in the creation of this excellent addition to any low vision practitioner’s equipment. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eThe MNRead Pocket card is available in English \u0026amp; Spanish and is manufactured and distributed under license by Precision Vision Inc.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e(c)2017 Regents of the University of Minnesota.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eSimilar Products: \u003cspan class=\"s2\"\u003eMN Read Category – All products\u003ca href=\"https:\/\/precision-vision.com\/?s=mn%20Read\"\u003e\u003c\/a\u003e\u003c\/span\u003e, \u003ca href=\"\/products\/sk-read-card-set\"\u003e\u003cspan class=\"s2\"\u003eSK Read\u003c\/span\u003e\u003c\/a\u003e, \u003cspan class=\"s2\"\u003eAll\u003c\/span\u003e\u003cspan class=\"s2\"\u003e Reading \u003c\/span\u003e\u003cspan class=\"s2\"\u003eCharts\u003c\/span\u003e, \u003ca href=\"\/products\/sloan-pocket-size-card\"\u003e\u003cspan class=\"s2\"\u003eSloan Pocket Size Near Vision Card with Continuous Text – In Multiple Languages\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"MNRead","offers":[{"title":"Spanish","offer_id":45921493516449,"sku":"C122","price":40.25,"currency_code":"USD","in_stock":true},{"title":"English","offer_id":45921493549217,"sku":"C100","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/MN-Pocket-Read-Card-C100.jpg?v=1776157168"},{"product_id":"lighthouse-powercard-word-recognition-pocket-size-test-card-40cm-16-in-lh-9258","title":"Lighthouse PowerCard Word Recognition Pocket-Size Test Card, 40cm \/ 16 in. LH 9258","description":"\u003cp\u003eDesigned as a rapid test for checking current prescription and accuracy of the add to be prescribed. Line increments in logMAR units in Snellen equivalent. Acuity range 8.0M to .4M (20\/400 to 20\/20). Measures 9.5x16cm (3.5x6.5in).\u003c\/p\u003e","brand":"Lighthouse","offers":[{"title":"Default Title","offer_id":45921495351457,"sku":"C191","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/C197_back.jpg?v=1776157176"},{"product_id":"lighthouse-north-carolina-reading-acuity-card-lh-9256","title":"Lighthouse North Carolina Reading Acuity card LH 9256","description":"\u003cp\u003eThis handy near point card is two sided and comes with a sleeve which isolates a set of Tumbling E optotypes on one side and text on the other side of the same M letter size. For each size there is a reference to the M letter size, acuity, printers point and where text of that size may be commonly found. Such as paperback books, newsprint, newspaper headlines, etc. M letter sizes range from 0.4 to 8.0.\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921495384225,"sku":"C185","price":37.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/C185.jpg?v=1776157176"},{"product_id":"lighthouse-etdrs-chart-2-lh-9143-2112","title":"Lighthouse ETDRS® Chart 2 LH 9143 (2112)","description":"\u003cp\u003eLighthouse ETDRS® Chart 2 LH 9143 (2112)\u003c\/p\u003e\n\u003cp\u003eDesigned by Lighthouse International for low vision testing at 4 Meter.\u003c\/p\u003e","brand":"ETDRS®, Lighthouse","offers":[{"title":"Default Title","offer_id":45921495646369,"sku":"C115","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/C115.jpg?v=1776157176"},{"product_id":"lighthouse-powercard-bird-continuous-text-card-40cm-16-in-lh-9264","title":"Lighthouse PowerCard \"Bird\" Continuous Text Card, 40cm \/ 16 in. LH 9264","description":"\u003cp\u003eSimple sentences in proportionally spaced (logMAR ) lines with Snellen equivalents. Acuity range 8.0M to .4M (20\/400 to 20\/20) .Pediatric card tests children with elementary reading levels (grades 1-3). Two-sided, measures 18x23cm (7x9in).\u003c\/p\u003e","brand":"Lighthouse","offers":[{"title":"Default Title","offer_id":45921495679137,"sku":"C212","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/c212-front-1.jpg?v=1776157177"},{"product_id":"lighthouse-powercard-bee-continuous-text-card-40cm-16-in-lh-9261","title":"Lighthouse PowerCard \"Bee\" Continuous Text Card","description":"\u003cp\u003eSimple sentences in proportionally spaced (logMAR ) lines with Snellen equivalents. Acuity range 8.0M to .4M (20\/400 to 20\/20). Pediatric card tests children with elementary reading levels (grades 1-3). Two-sided, measures 18x23cm (7x9in).\u003c\/p\u003e","brand":"Lighthouse","offers":[{"title":"Default Title","offer_id":45921495711905,"sku":"C202","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/C202.jpg?v=1776157176"},{"product_id":"lighthouse-house-apple-umbrella-flash-card-test-lh-9247","title":"Lighthouse House, Apple, Umbrella Flash Card Test LH 9247","description":"\u003cp\u003eA Flash Card Test for children consisting of twelve, two sided cards with House, Apple and Umbrella optotypes. The set presents each optotype at eight different Snellen acuity levels of 10, 16, 20, 32, 40, 50,100,200 when used a tthe intended 6 meters (20 feet) distance. The included instructions for use also provide acuity values at other test distances. This test was designed for pre-school screening, patients who do not know letters or numbers at any age and special needs patients.\u003c\/p\u003e","brand":"Lighthouse","offers":[{"title":"Default Title","offer_id":45921495744673,"sku":"C150","price":19.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/C150.jpg?v=1776157176"},{"product_id":"lighthouse-powercard-number-word-recognition-pocket-size-test-card-40cm-16-in-lh-9260","title":"Lighthouse Pocket PowerCard Number \u0026 Word Recognition","description":"\u003cp\u003eDesigned as a rapid test for checking current prescription and accuracy of the add to be prescribed. Line increments in logMAR units in Snellen equivalent. Acuity range 8.0M to .4M (20\/400 to 20\/20). Measures 9.5x16cm (3.5x6.5in)\u003c\/p\u003e\n\u003cp\u003eLH 9260\u003c\/p\u003e","brand":"Lighthouse","offers":[{"title":"Default Title","offer_id":45921495777441,"sku":"C197","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/c197-real.jpg?v=1776157176"},{"product_id":"lighthouse-powercards-number-recognition-pocket-size-test-card-40cm-16-in-lh-9259","title":"Lighthouse PowerCards Number Recognition Pocket-Size Test Card, 40cm \/ 16 in. LH 9259","description":"\u003cp\u003eDesigned as a rapid test for checking current prescription and accuracy of the add to be prescribed. Line increments in logMAR units in Snellen equivalent. Acuity range 8.0M to .4M (20\/400 to 20\/20). Measures 9.5x16cm (3.5x6.5in).\u003c\/p\u003e","brand":"Lighthouse","offers":[{"title":"Default Title","offer_id":45921495810209,"sku":"C194","price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/C197.jpg?v=1776157179"},{"product_id":"mnread-chart-in-english-spanish","title":"MNRead Chart - In Multiple Languages","description":"\u003cp bis_size='{\"x\":12,\"y\":9,\"w\":556,\"h\":39,\"abs_x\":619,\"abs_y\":271}'\u003eThe MNREAD Acuity Charts are continuous text reading acuity charts for normal and low vision.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":64,\"w\":556,\"h\":156,\"abs_x\":619,\"abs_y\":326}'\u003eOften times traditional vision charts only measure general parts of normal vision, such as acuity and contrast. However, many times everyday life scenarios place these two aspects in unique situations. For example, acuity is very important in vision. Testing acuity normally involves a standard eye test. However, when reading the newspaper, the eyes are challenged by small print, continuous text, and several close contact lines. This basic living situation may cause problems for patients with scotomata and may not be detected on conventional acuity charts. Continuous text charts give one more possibility during vision testing.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":237,\"w\":556,\"h\":97,\"abs_x\":619,\"abs_y\":499}'\u003eThe charts are used to assess how reading performance depends on print size. Three measures of reading performance are easily obtained: \u003cem bis_size='{\"x\":347,\"y\":257,\"w\":89,\"h\":19,\"abs_x\":954,\"abs_y\":519}'\u003eReading acuity\u003c\/em\u003e the smallest print that can just be read; \u003cem bis_size='{\"x\":145,\"y\":276,\"w\":148,\"h\":19,\"abs_x\":752,\"abs_y\":538}'\u003eMaximum reading speed\u003c\/em\u003e the reading speed when performance is not limited by print size; and \u003cem bis_size='{\"x\":167,\"y\":296,\"w\":101,\"h\":19,\"abs_x\":774,\"abs_y\":558}'\u003eCritical print size\u003c\/em\u003e the smallest print that supports the maximum reading speed.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":351,\"w\":556,\"h\":78,\"abs_x\":619,\"abs_y\":613}'\u003eThe MNREAD Acuity Charts have a wide range of applications in testing normal and low vision: prescribing optical corrections for reading, or other near tasks in the eye clinic, in low vision assessment, prescribing magnifiers or other reading aids, applications in pediatrics and special education, and research.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":445,\"w\":556,\"h\":78,\"abs_x\":619,\"abs_y\":707}'\u003eThese charts are available in English, Spanish, German, Dutch, Turkish, Portugeuse, and French. They are also available in normal contrast (black letters on white background) and a select few with reversed contrast (white letters on black background). There is also a \u003ca href=\"\/products\/mnread-pocket-card\" bis_size='{\"x\":12,\"y\":504,\"w\":131,\"h\":19,\"abs_x\":619,\"abs_y\":766}'\u003eMNRead Pocket Card\u003c\/a\u003e now available in English and Spanish.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":540,\"w\":556,\"h\":19,\"abs_x\":619,\"abs_y\":802}'\u003eIncluded are preferred scoring procedures, table for conversion and instructions.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":575,\"w\":556,\"h\":39,\"abs_x\":619,\"abs_y\":837}'\u003eThe MNREAD Acuity Charts were developed at the Minnesota Laboratory for Low-Vision Research, University of Minnesota, by:\u003c\/p\u003e\n\u003cul bis_size='{\"x\":12,\"y\":631,\"w\":556,\"h\":78,\"abs_x\":619,\"abs_y\":893}'\u003e\n\u003cli bis_size='{\"x\":52,\"y\":631,\"w\":516,\"h\":19,\"abs_x\":659,\"abs_y\":893}'\u003eSteve Mansfield\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":650,\"w\":516,\"h\":19,\"abs_x\":659,\"abs_y\":912}'\u003eGordon Legge\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":670,\"w\":516,\"h\":19,\"abs_x\":659,\"abs_y\":932}'\u003eAndrew Luebker\u003c\/li\u003e\n\u003cli bis_size='{\"x\":52,\"y\":689,\"w\":516,\"h\":19,\"abs_x\":659,\"abs_y\":951}'\u003eKathryn Cunningham\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp bis_size='{\"x\":12,\"y\":723,\"w\":556,\"h\":19,\"abs_x\":619,\"abs_y\":985}'\u003eThe research was funded and approved by the NIH.\u003c\/p\u003e\n\u003cp bis_size='{\"x\":12,\"y\":759,\"w\":556,\"h\":78,\"abs_x\":619,\"abs_y\":1021}'\u003eAll English, Spanish, Dutch, German, French (Charts 3 \u0026amp; 4), Turkish, Korean, Italian, and Portuguese versions of the MNREAD Acuity Charts are manufactured and distributed exclusively by Precision Vision Inc. French Canadian is available by special order in Charts 1 \u0026amp; 2, \u003ca href=\"\/pages\/contact\" bis_size='{\"x\":52,\"y\":817,\"w\":208,\"h\":19,\"abs_x\":659,\"abs_y\":1079}'\u003eplease contact us for more details\u003c\/a\u003e.\u003c\/p\u003e","brand":"MNRead","offers":[{"title":"High \/ Chart 1 \/ Korean","offer_id":45921497481377,"sku":"C200","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 2 \/ Korean","offer_id":45921497514145,"sku":"C210","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 1 \/ Italian","offer_id":45921497546913,"sku":"C810","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 2 \/ Italian","offer_id":45921497579681,"sku":"C820","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 1 \/ Portuguese","offer_id":45921497612449,"sku":"C307","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 2 \/ Portuguese","offer_id":45921497645217,"sku":"C308","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 1 \/ Turkish","offer_id":45921497677985,"sku":"C800","price":191.0,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 5 \/ French","offer_id":45921497710753,"sku":"C906","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 5 \/ French","offer_id":45921497743521,"sku":"C905","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 4 \/ French","offer_id":45921497776289,"sku":"C904","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 4 \/ French","offer_id":45921497809057,"sku":"C903","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 3 \/ French","offer_id":45921497841825,"sku":"C902","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 3 \/ French","offer_id":45921497874593,"sku":"C901","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 3 \/ Dutch","offer_id":45921497907361,"sku":"C706","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 3 \/ Dutch","offer_id":45921497940129,"sku":"C705","price":191.0,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 2 \/ Dutch","offer_id":45921497972897,"sku":"C704","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 2 \/ Dutch","offer_id":45921498005665,"sku":"C703","price":191.0,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 1 \/ Dutch","offer_id":45921498038433,"sku":"C702","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 1 \/ Dutch","offer_id":45921498071201,"sku":"C701","price":191.0,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 3 \/ German","offer_id":45921498103969,"sku":"C306","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 3 \/ German","offer_id":45921498136737,"sku":"C305","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 2 \/ German","offer_id":45921498169505,"sku":"C303","price":191.0,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 2 \/ German","offer_id":45921498202273,"sku":"C304","price":191.0,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 1 \/ German","offer_id":45921498235041,"sku":"C302","price":199.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 1 \/ German","offer_id":45921498267809,"sku":"C301","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 1 \/ English","offer_id":45921498300577,"sku":"C400","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 1 \/ English","offer_id":45921498333345,"sku":"C405","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 2 \/ English","offer_id":45921498366113,"sku":"C410","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 2 \/ English","offer_id":45921498398881,"sku":"C415","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 3 \/ English","offer_id":45921498431649,"sku":"C421","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 3 \/ English","offer_id":45921498464417,"sku":"C431","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 4 \/ English","offer_id":45921498497185,"sku":"C422","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 4 \/ English","offer_id":45921498529953,"sku":"C432","price":190.5,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 5 \/ English","offer_id":45921498562721,"sku":"C423","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 5 \/ English","offer_id":45921498595489,"sku":"C433","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 1 \/ Spanish","offer_id":45921498628257,"sku":"C500","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 1 \/ Spanish","offer_id":45921498661025,"sku":"C505","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 2 \/ Spanish","offer_id":45921498693793,"sku":"C510","price":190.5,"currency_code":"USD","in_stock":true},{"title":"Reversed \/ Chart 2 \/ Spanish","offer_id":45921498726561,"sku":"C515","price":191.0,"currency_code":"USD","in_stock":true},{"title":"High \/ Chart 3 \/ Spanish","offer_id":45921498759329,"sku":"C520","price":191.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/8160d1c6-groupingalllanguages.jpg?v=1776157235"},{"product_id":"lighthouse-series-etdrs-chart-1","title":"Lighthouse Series ETDRS® (Chart 1)","description":"\u003cp\u003eLighthouse charts are a legacy in the low vision world. Developed by great contributors decades ago and still sought after as much today as then. Constructed with the same precision, accuracy, and methodology as traditional ETDRS® charts. Licensed by VFO and exclusively manufactured by Precision Vision, Inc.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/products\/hotv-series-etdrs-chart-1-scramble\"\u003eLooking for a scrambled version?\u003c\/a\u003e\u003c\/p\u003e","brand":"ETDRS®, Precision Vision","offers":[{"title":"2 m \/ 6.5 ft","offer_id":45921506984097,"sku":"2900-0","price":69.75,"currency_code":"USD","in_stock":true},{"title":"2.5 m \/ 8.3 ft","offer_id":45921507016865,"sku":"2900-1","price":69.75,"currency_code":"USD","in_stock":true},{"title":"3 m \/ 10 ft","offer_id":45921507049633,"sku":"2900-2","price":69.75,"currency_code":"USD","in_stock":true},{"title":"4 m \/ 13 ft","offer_id":45921507082401,"sku":"2900-3","price":69.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/1.jpg?v=1776157218"},{"product_id":"low-vision-standard-contrast","title":"Low Vision, Standard Contrast","description":"\u003ch1 class=\"product_title entry-title\"\u003eMixed Contrast Reading Card – In Multiple Languages\u003c\/h1\u003e\n\u003cp\u003eDesigned as a simple screen test. The usual question for a reading test is: What is the smallest (black) line you can read? On the contrast card one adds the question What is the smallest (grey) line you can read? The difference between the two measurements will be obvious and can simply be expressed in lines. Preliminary findings indicate a 2 or 3 line difference is normal.\u003c\/p\u003e\n\u003cp\u003eUnrelated simple sentences at 4th grade level.\u003c\/p\u003e\n\u003cp\u003eServes as an educational tool to demonstrate the effect of contrast deficits to patients and family members.\u003c\/p\u003e\n\u003cp\u003eAlso Available in Spanish, Portuguese, German, Dutch , Finnish , Swedish , Italian, French, and Danish.\u003c\/p\u003e\n\u003ch1 class=\"product_title entry-title\"\u003eContinuous Text Mixed Contrast Near Vision Card – In Multiple Languages\u003c\/h1\u003e\n\u003cp\u003eNot time consuming (avg. read time: 45 sec.).\u003c\/p\u003e\n\u003cp\u003eUnrelated simple sentences at 4th grade level.\u003c\/p\u003e\n\u003cp\u003eServes as an educational toll to demonstrate the effect on contrast deficits to patients and family members.\u003c\/p\u003e\n\u003cp\u003eNear vision test features the mixture of acuity testing and 10% contrast sensitivity testing in one chart. Patients are tested for each simultaneously in a continuous text format. This format uses simple calibrated sentences which make testing easy and quick. This near point continuous text chart is also available in multiple languages including: English, Spanish, German, French, Portuguese, Finnish, Swedish, Italian, and Greek.\u003c\/p\u003e\n\u003ch1 class=\"product_title entry-title\"\u003eContinuous Text Near Vision Card – In Multiple Languages\u003c\/h1\u003e\n\u003cp\u003eNotations for commonly recommended testing standard of 40 cm (16 in.).\u003c\/p\u003e\n\u003cp\u003eEnglish reading card with sentences of equal length and difficulty.\u003c\/p\u003e\n\u003cp\u003eLetter sizes from 6.3M to .32M in Times Roman Font.\u003c\/p\u003e\n\u003cp\u003eAlso Available in Spanish, Portuguese, German, Dutch , Finnish , Swedish , Italian , French, and Greek.\u003c\/p\u003e\n\u003cp\u003eContinuous text cards simulate everyday tasks and activities that patients may encounter, such as reading the newspaper. This is important because it is the main part of everyday vision. Also, by testing with continuous text, doctors can establish a basis for prescriptions of magnification for corrective lenses. If everyday vision tasks are made easier, in turn the patient’s life can be easier.\u003c\/p\u003e\n\u003ch1 class=\"product_title entry-title\"\u003eLow Vision Reading Card – In Multiple Languages\u003c\/h1\u003e\n\u003cp\u003eLAYOUT\u003cbr\u003e\nThe card contains proportionally spaced reading segments in LogMAR on two sides. Side one increments ranging in size from 10m to 3m in Times Roman font. Side two features two charts From 4m to 0.6m, two sets are provided to avoid memorization. Each line contains the same number of letters and spaces. A diopter ruler is included.\u003c\/p\u003e\n\u003cp\u003eREADING ACUITY\u003cbr\u003e\nAny patient who can read even one segment at any distance deserves a low vision evaluation.\u003c\/p\u003e\n\u003cp\u003eUse of the diopter ruler allows a quick check of the reading distance against the reading add. It also allows verifying the reading acuity, using the modified Snellen formula: 1\/V = M x D (M = letter size in M-units, D = viewing distand in diopters.) Examples: at 40 cm (2.5D) the 10m text represents 1\/25 (20\/500, 0.04), since 10m x 2.5D = 25. At 20cm (5D) 10m represents 1\/50 (20\/1000, 0.02), since 10m x 5D = 50. At 40cm (2.5D) the smalles print (0.06) represents 1\/16 (20\/32, 0.32), since 0.6m x 2.5D = 1.6.\u003c\/p\u003e\n\u003cp\u003eREADING FLUENCY\u003cbr\u003e\nSince all lines have the same length, reading performance can be times to determine the level of magnification that will give optimum performance.\u003c\/p\u003e\n\u003cp\u003e----------\u003c\/p\u003e","brand":"Colenbrander","offers":[{"title":"Danish","offer_id":45921509867681,"sku":"4060-15","price":90.0,"currency_code":"USD","in_stock":true},{"title":"English","offer_id":45921509900449,"sku":"4011","price":55.25,"currency_code":"USD","in_stock":true},{"title":"Spanish","offer_id":45921509933217,"sku":"4012","price":55.25,"currency_code":"USD","in_stock":true},{"title":"Portuguese","offer_id":45921509965985,"sku":"4013","price":55.0,"currency_code":"USD","in_stock":true},{"title":"German","offer_id":45921509998753,"sku":"4014","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Dutch","offer_id":45921510031521,"sku":"4015","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Finnish","offer_id":45921510064289,"sku":"4016","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Swedish","offer_id":45921510097057,"sku":"4017","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Italian","offer_id":45921510129825,"sku":"4018","price":55.0,"currency_code":"USD","in_stock":true},{"title":"French","offer_id":45921510162593,"sku":"4019","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Greek","offer_id":45921510195361,"sku":"4016-15","price":74.75,"currency_code":"USD","in_stock":true},{"title":"Norwegian","offer_id":45921510228129,"sku":"4010-19","price":55.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/d5df152e20908e75d0017d93f2a154f3_XL-scaled-1_e6e74778-58b6-4998-a694-78c67c2c1c9b.jpg?v=1776157248"},{"product_id":"luxiq-2-tint-and-light-exam-system","title":"LuxIQ\/2™ Tint and Light Exam System","description":"\u003cdiv class=\"entry-content\"\u003e\n\u003ch4\u003eAll eyes see color differently\u003c\/h4\u003e\n\u003cp\u003eThe LuxIQ\/2™ is the first standard exam tool to provide filter and task lighting guidance. With it, simulate the range of commercially available tints, and vary light intensity and temperature to optimize vision performance. Then recommend specific tints, bulbs, or lamps for each individual. (US Patent 9,820,643)\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e Select the best filters or tinted lenses in \u0026lt; 5 minutes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe LuxIQ\/2™ simulates white light as seen through 450 to 580 nm blue blocker, tinted, and neutral density filters, without swapping trial lenses. Quickly demonstrate the visual effects with a scientific and repeatable method in the office.\u003c\/p\u003e\n\u003ch4\u003eRecommend task lighting in \u0026lt; 5 minutes\u003c\/h4\u003e\n\u003cp\u003eOptimal lighting improves functional vision for all. Many adults need more task light without glare for near acuity. Still others experience dry eye pain from too much light. The LuxIQ\/2 makes it practical to vary intensity and temperature without swapping bulbs or fixtures. Recommend optimum lighting and chart patient light sensitivity over time to observe changes or disease progression.\u003c\/p\u003e\n\u003cp\u003e“Using your device really helps patients better understand the lighting challenges that they were not aware of, and it helps us to provide them with great strategies.” Holly Stants, MS, OTR\/L, SCLV (UPMC Eye Center)\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003e\u003cem\u003ePrint \u003c\/em\u003edata sheet: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/LuxIQ-2-Data-Sheet.pdf?v=1778826620\"\u003eLuxIQ-2\u003c\/a\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable border=\"0\" cellpadding=\"10\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower:\u003c\/td\u003e\n\u003ctd\u003eRechargeable battery, 5 volt charger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical:\u003c\/td\u003e\n\u003ctd\u003e8.5” L x 8” W x 2” H; 1.75 lbs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilters:\u003c\/td\u003e\n\u003ctd\u003eBlue blockers, tinted, neutral density\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature:\u003c\/td\u003e\n\u003ctd\u003e2700-6500°K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntensity:\u003c\/td\u003e\n\u003ctd\u003e0-5000 lux\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003eConfidentiality\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe LuxIQ\/2 and LightChooser\/2 web app do not collect or save patient information, nor is any patient information visible to Jasper Ridge. All patient information is confidential.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWarranty and service\u003cbr\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eJasper Ridge warrants the LuxIQ\/2 for defects in material or workmanship for 1 year from shipment and agrees to repair or replace. Warranty excludes normal wear and tear, misuse, and shipping costs.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNow, a scientific basis to prescribe tints and task lighting!\u003c\/strong\u003e\u003c\/h3\u003e\n\u003c\/div\u003e","brand":"Precision Vision","offers":[{"title":"None","offer_id":45921510949025,"sku":"LuxIQ\/2","price":1975.0,"currency_code":"USD","in_stock":true},{"title":"Soft Tote","offer_id":45921510981793,"sku":"LuxIQ\/2 Soft Tote","price":2085.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/lux2-slide2.jpg?v=1776157234"},{"product_id":"bailey-lovie-reading-charts","title":"Bailey-Lovie Reading Charts","description":"\u003cp\u003eThis new set of Bailey-Lovie 2019 reading charts follow the design principles from the original Bailey-Lovie.\u003c\/p\u003e\n\u003cp\u003eThe Bailey-Lovie principles ensure that the visual task remains essentially the same at each size level.  That is, from one size level to the next, size is the only significant variable. This requires a logarithmic (constant ratio) progression of print size, and a standardized layout at each size level. (same number of letters or words, same spacing ratios, same number of rows, same font,). With reading charts, the words and sentences, paragraphs or passages should be chosen or designed so that the content and difficulty of the reading task has minimal variation from one size sample to the next. One major advantage of charts with these design characteristics is that the standardization of the task facilitates the assessment of reading speed as a function of print size.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eWord \u0026amp; Sentence Reading Charts\u003cbr\u003e\n\u003c\/u\u003e\u003c\/strong\u003eThe charts may be used for measuring reading acuity and for testing reading speed as a function of the size of the print.\u003cbr\u003e\nSentences are more representative of real-world reading tasks than are the sets of unrelated words.\u003cbr\u003e\nOne can think of the sentence-reading charts as mainly testing the ability to read, and the word-reading charts as mainly testing the ability to see to read.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eChart design\u003cbr\u003e\n\u003c\/u\u003e\u003c\/strong\u003eThese charts are in the English language.\u003cbr\u003e\nThe Word charts use unrelated words and, at each size level, there are 10 words arranged in two rows.\u003cbr\u003e\nThe Sentence charts use sentences that have 60-character spaces arranged in two rows.\u003cbr\u003e\nThe words and sentences are at the third-grade level and they were selected or composed by schoolteachers.\u003cbr\u003e\nThe layout has left justification and there is close spacing from one size level to the next.\u003cbr\u003e\nThe size progression is in increments of 0.10 log units (ratio ≈ 1.26).\u003cbr\u003e\nThe font is Times New Roman and the sizes range from 5.0 M to 0.16 M (44 to 1.4 points).\u003cbr\u003e\nPrint sizes are labeled in M-units (the distance in meters at which the lower-case letters subtend 5 arcminutes) and in typography points.\u003cbr\u003e\nThere are also VAR labels for designating visual acuity and these have been calibrated for a viewing distance of 40 cm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eVisual acuity demands for reading typeset materials depend on print size and viewing distance\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\nVisual acuity is an angular measurement. When measuring reading acuity, the visual acuity scores depend on both the size of the print and the viewing distance.\u003cbr\u003e\nWhen considering reading speed as a function of print size, the primary variable is the angular size of the print.\u003cbr\u003e\nThus, it is important to note the viewing distance(s) as well as the height(s) of the print being read.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eGood focus should be maintained.\u003cbr\u003e\n\u003c\/u\u003e\u003c\/strong\u003eWhen testing reading performance, the test cards are at near and vision should be in good focus.\u003cbr\u003e\nYoung patients usually have sufficient accommodation to achieve in-focus vision for most viewing distances.\u003cbr\u003e\nOlder patients often require a reading addition, or a combination of add power and accommodation, in order to achieve good focus.\u003cbr\u003e\nIf changes in viewing distance are permitted, lens changes may be necessary to maintain good focus.\u003cbr\u003e\nMost, but not all, testing of reading speed as a function of print size is performed with the test card at a fixed distance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eReading Speeds\u003c\/u\u003e\u003c\/strong\u003e\u003cbr\u003e\nThe Bailey-Lovie charts are designed so the patient can read without pausing as they go from one size level to the next.\u003cbr\u003e\nReading in this continuous style improves the precision of timing the reading performance because it avoids the uncertainty or “noise” associated with the patient beginning and ending each reading task.\u003cbr\u003e\nReading speeds can be measured in several different ways. Patients may be instructed to read silently or aloud.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eReading efficiency as a function of print size\u003c\/u\u003e\u003c\/strong\u003e.\u003cbr\u003e\nFor silent reading, speeds may be monitored objectively using eye-movements.\u003cbr\u003e\nReadings speeds are usually significantly faster for reading silently than for reading aloud.\u003cbr\u003e\nEye-movements can be monitored electronically so that each eye-movement is recorded.\u003cbr\u003e\nLarge right-to-left return saccades mark the end of reading of one row of print and beginning the next.\u003cbr\u003e\nWith two rows of print at each size, the time taken to read each print sample will be the time between two successive return saccades.\u003cbr\u003e\nFrom eye-movement recordings, times to read each print size is easily measured and reading speeds can be calculated.\u003c\/p\u003e\n\u003cp\u003eA similar, but less precise approach is for the clinician to watch the eye-movements as the patient reads aloud.\u003cbr\u003e\nUsing a stop-watch in lap-time mode, the clinician can see the return saccades, record times and determine reading speeds for the different size levels.\u003c\/p\u003e\n\u003cp\u003eA simpler method is for the clinician to listen to the patient reading aloud, and use a stopwatch in lap-time mode, pressing the button each time the patient reads out the last word of each print-size sample.\u003c\/p\u003e\n\u003cp\u003ePerhaps the most common clinical practice is for the clinician make to subjective qualitative judgments about reading efficiency and the confidence that patient exhibits as they read at each print size. The clinician hears the pattern of the reading becoming slower and the confidence diminishing as the print size approaches the patient’s resolution limit.\u003cbr\u003e\nAt large print sizes, patients may read with their maximum efficiency, but as the print size progressively becomes smaller, the reading efficiency systematically declines and reading speeds becomes slower.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eReading times and words per minute\u003cbr\u003e\n\u003c\/u\u003e\u003c\/strong\u003eMost smart-phone devices have a clock function that includes a lap-timer. Stop-watches are inexpensive.\u003cbr\u003e\nElectronic timers in lap-time mode can give a list of the times taken between consecutive button presses.\u003cbr\u003e\nTypically, with these reading charts, the timer will show a list of the times taken to read the print at each size level.\u003cbr\u003e\nThe times can easily be converted to reading speed expressed in words per minute.\u003cbr\u003e\nOn the word-reading chart, there are 10 words on the word-reading chart at each size level.\u003cbr\u003e\nOn the sentence reading chart there are 60-character spaces, and it is common practice to assume that 6 characters represent a standard-length word. Each sentence can be considered to be equivalent to 10 words.\u003c\/p\u003e","brand":"Bailey-Lovie","offers":[{"title":"Chart 1 \/ Sentences","offer_id":45921512554657,"sku":"4502","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ Sentences","offer_id":45921512587425,"sku":"4503","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ Sentences","offer_id":45921512620193,"sku":"4504","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Chart 1 \/ Words","offer_id":45921512652961,"sku":"4505","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Chart 2 \/ Words","offer_id":45921512685729,"sku":"4506","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Chart 3 \/ Words","offer_id":45921512718497,"sku":"4507","price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/4504-Web-scaled-1.jpg?v=1776157247"},{"product_id":"mayer-kran-double-happy-low-contrast-test","title":"Mayer-Kran™ Double-Happy™ Low Contrast Test","description":"\u003cp\u003eAssessment of contrast sensitivity (CS) is an important component of a comprehensive eye examination. The test should be administered by a vision health professional or a person trained in administering vision tests. The test results should be interpreted in the context of the individual’s overall presentation and the results of the individual’s eye examination. If the individual’s test shows abnormal results, we recommend retesting, preferably by a different tester who is unaware of the first tester’s results. A CS test does not replace the eye examination.\u003c\/p\u003e\n\u003cp\u003eThe Mayer-Kran™ Double-Happy™ Low Contrast Test consists of cards printed with a schematic smiling face. The face elements on each card are darker than the white card. The darkness of the face relative to the background is calibrated in percent contrast (Weber formula). Contrasts range from nearly black (89%) to very dim (2.2%). (Screening set -2.2%, Full set -0.8%). (The face contrast values are converted into log contrast sensitivity or logCS.)\u003c\/p\u003e\n\u003cp\u003eThe M-K Double-Happy Contrast Screening Test is offered with two options:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Screening Set\u003c\/strong\u003e is a set of 6 cards varying in Weber contrast: 89, 36, 25, 12.6, 6.3, 3.2, 2.2\u003c\/li\u003e\n\u003cli\u003elogCS Values are: 0.05, 0.45, 0.60, 0.90, 1.20, 1.50, 1.65\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Full Set\u003c\/strong\u003e is a set of 16 cards varying in Weber contrast: 89, 71, 50, 36, 25, 17.8, 12.6, 8.9, 6.3, 4.5, 3.2, 2.2, 1.6, 1.1, 0.8, Blank\u003c\/li\u003e\n\u003cli\u003elogCS Values are: 0.05, 0.15, 0.30, 0.45, 0.60, 0.75, 0.90, 1.05, 1.20, 1.35, 1.50, 1.65, 1.80, 1.95, 2.1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003eThe logCS values can be related to difficulties in visually guided activities in adults. For example, logCS values ≤ 0.9 may be associated with a serious disability in walking, ≤ 1.3 may result in significant difficulties in recognizing faces, and \u0026lt;1.4 may cause significant limitations in reading (see instructions for further references).\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eInstructions May be Downloaded as follows:\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e- \u003ca rel=\"noopener\" href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/06\/ab3e665a-dh-full-set-instructions_8x11_06162021_rev3_approved.pdf\" target=\"_blank\"\u003eFull Set Instructions\u003c\/a\u003e\u003cbr\u003e- \u003ca rel=\"noopener\" href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/06\/12add245-dh-screening-set-instructions_8x11_06162021_rev3_approved.pdf\" target=\"_blank\"\u003eScreening Set Instructions\u003c\/a\u003e\u003cbr\u003e- \u003ca rel=\"noreferrer noopener\" href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/07\/54227bfc-2012-double-happy-care-handling.pdf\" target=\"_blank\"\u003eCare and Handling Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/storage.googleapis.com\/stateless-precision-vision\/2021\/06\/885edf3a-behind-the-test-double-happy-developers-qa.pdf\" target=\"_blank\"\u003eBehind The Test - Click here to read a question \u0026amp; answer session with the developers of Mayer-Kran™ Double-Happy™ Low Contrast Test\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- \/wp:paragraph --\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c!-- wp:preformatted {\"style\":{\"typography\":{\"fontSize\":10}}} --\u003e\u003c\/p\u003e\n\u003cpre style=\"font-size: 10px;\" class=\"wp-block-preformatted\"\u003e*Teller Acuity Cards® is a U.S. registered trademark of the University of Washington and used under license.\u003c\/pre\u003e\n\u003cp\u003e\u003c!-- \/wp:preformatted --\u003e\u003c\/p\u003e","brand":"Double-Happy","offers":[{"title":"Full Set","offer_id":45921513439393,"sku":"2012-16","price":995.0,"currency_code":"USD","in_stock":true},{"title":"Screening Set","offer_id":45921513472161,"sku":"2012-6","price":395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/389fadf5-2012-web-image1-wshadow-scaled-1.jpg?v=1776157248"},{"product_id":"submacular-surgery-test-for-reading-speed","title":"Submacular Surgery Test for Reading Speed","description":"\u003cp\u003eSubmacular Surgery Test for Reading Speed - Set of Five (5) cards with different text\u003c\/p\u003e","brand":"Precision Vision","offers":[{"title":"Default Title","offer_id":45921513504929,"sku":"SST","price":207.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/c8a274ba-sst_all_web-scaled-1.jpg?v=1776157242"},{"product_id":"super-macula","title":"Super Macula®","description":"\u003cp\u003eThe Super Macula® Lens is designed for viewing and treating the central retina. Its high resolution and high magnification capabilities make it ideal for macular holes, epiretinal membranes, and submacular surgery.\u003c\/p\u003e","brand":"Volk","offers":[{"title":"Default Title","offer_id":45921521139873,"sku":"VSMACVIT","price":1003.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4321\/7569\/files\/Group192.png?v=1779222197"}],"url":"https:\/\/precision-vision.com\/collections\/low-vision-tests.oembed","provider":"Precision Vision","version":"1.0","type":"link"}